Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Laurent, Tomasz, On 06/10/2012 11:28 PM, Laurent Pinchart wrote: Hi Tomasz, On Friday 08 June 2012 16:31:31 Tomasz Stanislawski wrote: Hi Laurent and Subash, I confirm the issue found by Subash. The function vb2_dc_kaddr_to_pages does fail for some occasions. The failures are rather strang

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Tomasz, On Friday 08 June 2012 16:31:31 Tomasz Stanislawski wrote: > Hi Laurent and Subash, > > I confirm the issue found by Subash. The function vb2_dc_kaddr_to_pages does > fail for some occasions. The failures are rather strange like 'got 95 of > 150 pages'. It took me some time to find the

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Laurent and Subash, I confirm the issue found by Subash. The function vb2_dc_kaddr_to_pages does fail for some occasions. The failures are rather strange like 'got 95 of 150 pages'. It took me some time to find the reason of the problem. I found that dma_alloc_coherent for iommu an ARM does us

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hello Tomasz, On 06/07/2012 06:06 AM, Laurent Pinchart wrote: Hi Tomasz, On Wednesday 06 June 2012 13:56:42 Tomasz Stanislawski wrote: On 06/06/2012 10:06 AM, Laurent Pinchart wrote: On Wednesday 23 May 2012 15:07:27 Tomasz Stanislawski wrote: This patch adds the setup of sglist list for MMA

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Tomasz, On Wednesday 06 June 2012 13:56:42 Tomasz Stanislawski wrote: > On 06/06/2012 10:06 AM, Laurent Pinchart wrote: > > On Wednesday 23 May 2012 15:07:27 Tomasz Stanislawski wrote: > >> This patch adds the setup of sglist list for MMAP buffers. > >> It is needed for buffer exporting via DMA

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Laurent, Thank your for your comments. On 06/06/2012 10:06 AM, Laurent Pinchart wrote: > Hi Tomasz, > > Thanks for the patch. > > On Wednesday 23 May 2012 15:07:27 Tomasz Stanislawski wrote: >> This patch adds the setup of sglist list for MMAP buffers. >> It is needed for buffer exporting via

Re: [PATCH 04/12] v4l: vb2-dma-contig: add setup of sglist for MMAP buffers

Hi Tomasz, Thanks for the patch. On Wednesday 23 May 2012 15:07:27 Tomasz Stanislawski wrote: > This patch adds the setup of sglist list for MMAP buffers. > It is needed for buffer exporting via DMABUF mechanism. > > Signed-off-by: Tomasz Stanislawski > Signed-off-by: Kyungmin Park > --- > dr